“Kill the Moon” - In the near future, The Doctor and Clara arrive on a decrepit shuttle making a suicide mission to the Moon. Crashing on the lunar surface, they find a mining base full of eviscerated corpses, spider-like creatures scuttling about in the dark, and a terrible dilemma.

“Mummy on the Orient Express” - Aboard the most beautiful train in history, speeding among the stars of the future, a legend is stalking the passengers. Once you see the Mummy, you have 66 seconds to live. Clara sees The Doctor at his most deadliest and most ruthless – and finally she realises she’s made the right decision. Because this is their last adventure: it’s time to say goodbye to the Time Lord.

Flatline -After Clara stormed off two episodes ago, viewers might have wondered if they would ever see her again. However, one thing it proved is that here is a companion who is quite willing to speak her mind and is more than capable of going it alone. And sure enough, here she is, separated from the Doctor and facing a menace from another dimension, an enemy that exists beyond human perception. She has people to save - but how is it possible to hide when the walls provide no protection? Jenna-Louise Coleman and Peter Capaldi star, with appearances from Christopher Fairbank (Auf Wiedersehen, Pet) and former Casualty actor Matt Bardock (paramedic Jeff)